42112231311 has 4 divisors (see below), whose sum is σ = 56149641752. Its totient is φ = 28074820872.

The previous prime is 42112231307. The next prime is 42112231321. The reversal of 42112231311 is 11313221124.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42112231311 - 2² = 42112231307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112231321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7018705216 + ... + 7018705221.

It is an arithmetic number, because the mean of its divisors is an integer number (14037410438).

Almost surely, 2^42112231311 is an apocalyptic number.

42112231311 is a deficient number, since it is larger than the sum of its proper divisors (14037410441).

42112231311 is a wasteful number, since it uses less digits than its factorization.

42112231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14037410440.

The product of its digits is 288, while the sum is 21.

Adding to 42112231311 its reverse (11313221124), we get a palindrome (53425452435).

The spelling of 42112231311 in words is "forty-two billion, one hundred twelve million, two hundred thirty-one thousand, three hundred eleven".